Jininese Elves:

The elves of Jinin are descended from those who traveled underground millennia ago to escape Earthfall. Led by the oracle Jininsiel and guided by a vast, treelike vein of mithral, these elves emerged in Tian Xia, where they founded the nation of Jinin. Jininese elves have adopted many of the customs of their human and samsaran neighbors, Jinin’s culture places great emphasis on artistic pursuits, especially those involving mithral, which serves as a national symbol, lucrative export, and treasured cultural relic for Jininese elves. The elves of Jinin are far less isolationist than many other elven cultures, freely permitting outsiders into Jinin; likewise, while most Jininese elves remain there, many travel or settle across the Dragon Empires and beyond.